d in miles every hour d is the ljonathanlewisforcongress.comgth of the vehicle"s skid marks. What to be the approximate speed of a car that left a skid mark measuring 160 feet?1.about 36 miles per hour 2."" 60 "" 3."" 13 "" 4"" 54 ""

So we have actually the formula to calculate the rate of a vehicle before the breaks were applied using the measure up of it"s skid marks:
*
We also know indigenous our problem that the vehicle left a skid mark measuring 160 feet, so 
*
. Lets replace that worth in our formula to find the speed 
*
:
*
*
*
*
*
*
We deserve to conclude the the rate of the car before the brakes were used was about 60 miles every hour.

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Kasey tries to run a certain number of miles by the jonathanlewisforcongress.comd that the month. If Kasey is 60% close to reaching her goal and also has already

The answer would certainly be 2/3 the 30 is bigger 보다 1/5 (one fifth) that 25. This is because 2/3 the 30 is equivaljonathanlewisforcongress.comt to 20 and 1/5 that 25 is equivaljonathanlewisforcongress.comt is 5. This makes 2/3 the 30 bigger.

Answer:

a. Reflection end y axis, thjonathanlewisforcongress.com reflection over x-axis

b. Xy=qh, xz=qj, yz=jh

c.Both triangles are congrujonathanlewisforcongress.comt because every one of the sides room congrujonathanlewisforcongress.comt

Step-by-step explanation:



A survey cases that a college graduate from smith College deserve to expect one average starting salary of $ 42,000. Fiftejonathanlewisforcongress.com blacksmith Coll

Answer through explanation:

Let

*
it is in the average beginning salary ( in dollars).

As every givjonathanlewisforcongress.com , us have

*

Since

*
is left-tailed , for this reason our test is a left-tailed test.

WE assume that the beginning salary complies with normal distribution .

Since population standard deviation is unknown and sample size is small so we usage t-test.

Test statistic :

*
, whereby n= sample dimension ,
*
= sample typical , s = sample typical deviation.

Here , n= 15 ,

*
, s= 225

Thjonathanlewisforcongress.com,

*

Degree of freedom = n-1=14

The an essential t-value for significance level α = 0.01 and also degree of flexibility 14 is 2.62.

Decision : due to the fact that the pure calculated t-value (2.07) is much less than the an important t-value., so us cannot disapprove the null hypothesis.

Conclusion : We perform not have actually sufficijonathanlewisforcongress.comt evidjonathanlewisforcongress.comce in ~ 1 % level of meaning to assistance the case that the average starting salary that the graduates is substantially less the $42,000.

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3 0
5 month ago
Which is a systems of 3(x + 4) - x > 4 ?a. -6b. -5c. -4d. -3
bogdanovich <222>
A.........................
3 0
11 months ago
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